[Bug target/128620] [17 Regression][nvptx] ICE in gen_rtx_SUBREG, at emit-rtl.cc:1062 (GCC selftest) since r17-6105-gf90f1468590ad4

[tnfchris at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128620

--- Comment #4 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
Can you try

  diff --git a/gcc/final.cc b/gcc/final.cc
  --- a/gcc/final.cc
  +++ b/gcc/final.cc
  @@ -4813,8 +4813,7 @@
   static void
   test_output_operand_modifier_operand ()
   {
  -  rtx operands[] = { GEN_INT (10),
  -                  gen_lowpart_SUBREG (QImode, gen_rtx_REG (HImode, 0)) };
  +  rtx operands[] = { GEN_INT (10), gen_rtx_REG (QImode, 0) };
     auto_vec<unsigned long, 2> opnums;
     opnums.safe_push (1);
     opnums.safe_push (0);

the subreg isn't really needed here.